U.S. Navy ZPG-2 airship in flight over Plymouth, Massachusetts.

U.S. Navy ZPG-2 in flight over Plymouth, Massachusetts. ZPG-2 airship flies over water. Pilot of airship at the controls. Pilot moves wheel of airship. ZPG-2 as seen from other airship. Aerial view of shoreline of Plymouth, Massachusetts. Landing site for pilgrims shows a monument erected on shore. These ASW (Anti Submarine Warfare) airships are likely based at South Weymouth, Massachusetts.